Hello All,
This topic may have been discussed before although I've not been able
to find it in this d-list.
The "shaky SAN" detection method seems to be currently based on
availability of the remote target ports and how often they
disappear/reappear as per HBA state change on that remote target.
+static void blk_bio_poll_post_submit(struct bio *bio, blk_qc_t cookie)
+{
+ bio->bi_iter.bi_private_data = cookie;
+}
+
Hey Ming, thinking about nvme-mpath, I'm thinking that this should be
an exported function for failover. nvme-mpath updates bio.bi_dev
when re-submitting I/Os to an
On Fri, Mar 19, 2021 at 05:26:47PM +0100, mwi...@suse.com wrote:
> From: Martin Wilck
>
> After "11-dm-mpath.rules: run "multipath -U" with -v1", this patch isn't
> necessary any more. It's desirable to see these messages from multipathd,
> as they mean that a valid path had been found in a map
On Mon, Mar 22 2021 at 4:11am -0400,
Christoph Hellwig wrote:
> On Sat, Mar 20, 2021 at 03:19:23PM +0800, Zhiqiang Liu wrote:
> > From: Zhiqiang Liu
> >
> > When we make IO stress test on multipath device, there will
> > be a metadata err because of wrong path. In the test, we
> > concurrent
This patch shuts up a message "detected capacity change" when creating a
dm devce.
Signed-off-by: Mikulas Patocka
Index: linux-2.6/drivers/md/dm.c
===
--- linux-2.6.orig/drivers/md/dm.c
+++ linux-2.6/drivers/md/dm.c
@@ -2036,7
On Sat, 2021-03-20 at 03:13 +0100, Xose Vazquez Perez wrote:
> For max_sectors_kb, replace "device dependent" with its sysfs path.
> And use as wildcard for device in paths.
>
> Cc: Martin Wilck
> Cc: Benjamin Marzinski
> Cc: Christophe Varoqui
> Cc: DM-DEVEL ML
Reviewed-by: Martin Wilck
On Sat, Mar 20, 2021 at 03:19:23PM +0800, Zhiqiang Liu wrote:
> From: Zhiqiang Liu
>
> When we make IO stress test on multipath device, there will
> be a metadata err because of wrong path. In the test, we
> concurrent execute 'iscsi device login|logout' and
> 'multipath -r' command with IO
On Wed, Feb 24, 2021 at 1:26 AM Guoqing Jiang
wrote:
>
>
>
> On 2/24/21 10:09, Song Liu wrote:
> > On Mon, Feb 15, 2021 at 3:08 AM Paul Menzel wrote:
> >>
> >> [+cc Donald]
> >>
> >> Am 13.02.21 um 01:49 schrieb Guoqing Jiang:
> >>> Unregister sync_thread doesn't need to hold reconfig_mutex
I'm thinking how this mechanism could work with *original* bio-based
devices that don't ne built upon mq devices, such as nvdimm. This
mechanism (also including my original design) mainly focuses on virtual
devices that built upon mq devices, i.e., md/dm.
As the original bio-based devices wants
On Fri, 19 Mar 2021, Bhaskar Chowdhury wrote:
s/retrievd/retrieved/
s/misalignement/misalignment/
s/funtion/function/
Signed-off-by: Bhaskar Chowdhury
Acked-by: Randy Dunlap
---
drivers/md/dm-ebs-target.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git
On 3/19/21 9:46 PM, Ming Lei wrote:
> On Fri, Mar 19, 2021 at 05:38:38PM +0800, JeffleXu wrote:
>> I'm thinking how this mechanism could work with *original* bio-based
>> devices that don't ne built upon mq devices, such as nvdimm. This
>
> non-mq device needs driver to implement io polling by
On 3/19/21 4:48 PM, Ming Lei wrote:
> On Fri, Mar 19, 2021 at 03:59:06PM +0800, JeffleXu wrote:
>>
>>
>> On 3/19/21 12:48 AM, Ming Lei wrote:
>>> Add one req flag REQ_TAG which will be used in the following patch for
>>> supporting bio based IO polling.
>>>
>>> Exactly this flag can help us to
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